Page:Philosophical Transactions of the Royal Society A - Volume 184.djvu/567

554 Assuming the impurity to be equally distributed between the two gases we have

or

If all impurity be in oxygen, we get the ratio

and if all in the hydrogen,

For the experiment with the apparatus arranged as in fig. 1, I have chosen an experiment in which the hydrogen measured is in excess of the oxygen. The constant volume of the apparatus = 3826.3 grms. of mercury.

Oxygen from silver oxide (from silver sulphate and potassium hydrate)—

Hydrogen from palladium hydride—